Would you classify red squirrels and grey squirrels as specialist or generalists?

Red squirrels are generally considered specialists, as they primarily rely on specific habitats, particularly mature coniferous forests, and have a diet that heavily depends on pine seeds. In contrast, grey squirrels are classified as generalists because they can thrive in a variety of habitats, including urban areas, and have a more diverse diet that includes nuts, fruits, and even bird eggs. This adaptability allows grey squirrels to occupy a wider range of environments compared to red squirrels.